Question 1

The ability to clearly see objects at a distance but not close up is properly called .

Accepted Answer

A)   myopia
B)   hyperopia
C)   hypopia
D)   presbyopiaE) B) and C)
F) A) and D)

Question 2

What two things does the ciliary body do?

Accepted Answer

1. Constriction of the ciliary...

Question 3

A nurse is administering Pilocarpine eye drops. The nurse instructs the patient to press on the nasolacrimal duct for 30 seconds because the medication can have some systemic side effects, such as affecting the heart rate. Explain the rationale for pressing on the nasolacrimal duct.

Accepted Answer

Applying gentle pressure to th...

Question 4

Receptors for hearing are located in the .

Accepted Answer

A)   tympanic membrane
B)   cochlea
C)   semicircular canals
D)   vestibuleE) A) and C)
F) A) and B)

Question 5

The function of the lens of the eye is to allow precise focusing of light on the retina.

Accepted Answer

A) True 
 B)False

Question 6

The only special sense NOT fully functional at birth is the sense of .

Accepted Answer

A)   vision
B)   hearing
C)   equilibrium
D)   taste
E)   smellF) B) and E)
G) C) and D)

Question 7

The visible light portion of the electromagnetic spectrum fits between .

Accepted Answer

A)   UV and infrared waves
B)   X-rays and UV waves
C)   infrared and microwaves
D)   microwaves and radio wavesE) A) and C)
F) B) and C)

Question 8

Contraction of the ciliary muscle causes the lens to bend the light less.

Accepted Answer

A) True 
 B)False

Question 9

Color vision has much greater resolution than night vision (vision that is mostly in shades of gray) . Which of the following is the best explanation for why this is so?

Accepted Answer

A)   There are several types of cone photoreceptors, each of which enrich the clarity and resolution of vision.
B)   A single cone photoreceptor often connects to a single bipolar cell and a single ganglion cell while as many as 100 rods will converge to a single ganglion cell.
C)   There are many more cone photoreceptors in the eye than rod photoreceptors.
D)   A larger proportion of the brain's visual cortex is active during the day when our cone photoreceptors are most active.E) A) and C)
F) A) and B)

Question 10

In order for sound to reach the spiral organ (of Corti), the auditory ossicles must vibrate the oval window and set the endolymph in motion.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is true about gustatory receptors?

Accepted Answer

A)   The receptors generate an action potential in response to chemical stimuli.
B)   Complete adaptation occurs in about one to five minutes.
C)   In order for a chemical to be sensed, it must be hydrophobic.
D)   All gustatory receptors have the same threshold for activation.E) C) and D)
F) B) and D)

Question 12

Which of the following taste sensations is incorrectly matched to the chemicals that produce it?

Accepted Answer

A)   sweet-organic substances such as sugar and some lead salts
B)   umami-triglycerides and fatty acids
C)   salty-metal ions
D)   sour-acids
E)   bitter-alkaloidsF) C) and E)
G) C) and D)

Question 13

Which of the following is the best explanation for our perception of color?

Accepted Answer

A)   As many as 100 cones may converge on one ganglion cell.
B)   The foveae are densely packed with cones.
C)   Rods contain a single kind of visual pigment.
D)   Cones come in three types, each sensitive to different wavelengths of light.E) C) and D)
F) A) and B)

Question 14

Without a functioning crista ampullaris, the semicircular canals would not function.

Accepted Answer

A) True 
 B)False

Question 15

Select the correct statement about olfaction.

Accepted Answer

A)   Olfactory adaptation is only due to fading of receptor cell response.
B)   Some of the sensation of olfaction is actually one of pain.
C)   Olfactory receptors have a high degree of specificity toward a single type of chemical.
D)   Substances must be volatile and hydrophobic in order to activate olfactory receptors.E) B) and D)
F) None of the above

Question 16

The receptor for static equilibrium is the .

Accepted Answer

A)   macula
B)   semicircular canals
C)   cochlear duct
D)   utricleE) A) and B)
F) B) and D)

Question 17

Conscious perception of vision probably reflects activity in the .

Accepted Answer

A)   occipital lobe of the cortex
B)   superior colliculus
C)   thalamus
D)   chiasmaE) A) and C)
F) A) and B)

Question 18

Visual processing in the thalamus does NOT contribute significantly to .

Accepted Answer

A)   night vision
B)   depth perception
C)   movement perception
D)   high-acuity visionE) B) and C)
F) A) and D)

Question 19

When we move from darkness to bright light, retinal sensitivity is lost, but visual acuity is gained.

Accepted Answer

A) True 
 B)False

Question 20

Distinguish between the maculae and cristae ampullaris in terms of their sensory reception.

Accepted Answer

Maculae are sensory receptors for static...

Exam 15: The Special Senses

Which of the following taste sensations is incorrectly matched to the chemicals that produce it?

Correct AnswerverifiedShow Answer

Which of the following is true about gustatory receptors?

Correct AnswerverifiedShow Answer

A nurse is administering Pilocarpine eye drops. The nurse instructs the patient to press on the nasolacrimal duct for 30 seconds because the medication can have some systemic side effects, such as affecting the heart rate. Explain the rationale for pressing on the nasolacrimal duct.

Correct AnswerverifiedApplying gentle pressure to th...View AnswerShow Answer

Without a functioning crista ampullaris, the semicircular canals would not function.

Correct AnswerverifiedShow Answer

Select the correct statement about olfaction.

Correct AnswerverifiedShow Answer

Contraction of the ciliary muscle causes the lens to bend the light less.

Correct AnswerverifiedShow Answer

Visual processing in the thalamus does NOT contribute significantly to .

Correct AnswerverifiedShow Answer

Distinguish between the maculae and cristae ampullaris in terms of their sensory reception.

Correct AnswerverifiedMaculae are sensory receptors for static...View AnswerShow Answer

When we move from darkness to bright light, retinal sensitivity is lost, but visual acuity is gained.

Correct AnswerverifiedShow Answer

What two things does the ciliary body do?

Correct Answerverified1. Constriction of the ciliary...View AnswerShow Answer

Color vision has much greater resolution than night vision (vision that is mostly in shades of gray) . Which of the following is the best explanation for why this is so?

Correct AnswerverifiedShow Answer

The visible light portion of the electromagnetic spectrum fits between .

Correct AnswerverifiedShow Answer

The function of the lens of the eye is to allow precise focusing of light on the retina.

Correct AnswerverifiedShow Answer

In order for sound to reach the spiral organ (of Corti), the auditory ossicles must vibrate the oval window and set the endolymph in motion.

Correct AnswerverifiedShow Answer

The receptor for static equilibrium is the .

Correct AnswerverifiedShow Answer

The ability to clearly see objects at a distance but not close up is properly called .

Correct AnswerverifiedShow Answer

Receptors for hearing are located in the .

Correct AnswerverifiedShow Answer

Which of the following is the best explanation for our perception of color?

Correct AnswerverifiedShow Answer

The only special sense NOT fully functional at birth is the sense of .

Correct AnswerverifiedShow Answer

Conscious perception of vision probably reflects activity in the .

Correct AnswerverifiedShow Answer

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Applying gentle pressure to th...
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Maculae are sensory receptors for static...
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1. Constriction of the ciliary...
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